cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A117721 Primes formed by the initial digits of the binary expansion of Pi.

Original entry on oeis.org

3, 6588397, 1686629713, 26986075409, 16703571626015105435307505830654230989, 13420802360424337830311681948440006481608388178854297901454212848703426437343610760199000777828079
Offset: 1

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Author

Carl R. White, Apr 13 2006

Keywords

Comments

Pi primes to base 2 (for base 10 see A005042). This sequence is the list of prime members of A068425.

Crossrefs

Cf. A004601 (the binary expansion), A005042, A068425, A065987 (where primes are).